Best Feature Flags Tools

Explore leading tools in the Feature Flags category, including open-source options and SaaS products. Compare features, use cases, and find the best fit for your workflow.

10+ open-source projects · 5 SaaS products

Top open-source Feature Flags

These projects are active, self-hostable choices for knowledge management teams evaluating alternatives to SaaS tools.

View all 10+ open-source options
Unleash logo

Unleash

Feature flag platform enabling safe, incremental releases

Stars
13,085
License
Apache-2.0
Last commit
1 day ago
TypeScriptActive
GrowthBook logo

GrowthBook

Open Source Feature Flagging and A/B Testing Platform

Stars
7,260
License
Last commit
1 day ago
TypeScriptActive
Flagsmith logo

Flagsmith

Open-Source Feature Flagging and Remote Config Platform

Stars
6,192
License
BSD-3-Clause
Last commit
1 day ago
PythonActive
Flipt logo

Flipt

Git-native feature management platform for modern development teams

Stars
4,689
License
Last commit
1 day ago
GoActive
Flipper logo

Flipper

Beautiful, performant feature flags for Ruby and Rails

Stars
3,905
License
MIT
Last commit
5 days ago
RubyActive
Split logo

Split

Rack‑based A/B testing framework for Rails, Sinatra, and more

Stars
2,714
License
MIT
Last commit
3 days ago
RubyActive
Most starred project
13,085★

Feature flag platform enabling safe, incremental releases

Recently updated
1 day ago

A simple, complete, self-hosted feature flag solution that supports Go, OpenFeature SDKs, and multiple storage backends, offering complex rollouts, notifications, and data export via a relay proxy.

Dominant language
Go • 4 projects

Expect a strong Go presence among maintained projects.

Popular SaaS Platforms to Replace

Understand the commercial incumbents teams migrate from and how many open-source alternatives exist for each product.

Hypertune logo

Hypertune

Type-safe feature flags platform with A/B testing, analytics, and app configuration optimized for TypeScript

Feature Flags
Alternatives tracked
16 alternatives
LaunchDarkly logo

LaunchDarkly

Feature flag management platform for safe software releases with targeting, experimentation, and rollback capabilities

Feature Flags
Alternatives tracked
16 alternatives
Reflag logo

Reflag

Feature flags and A/B testing for TypeScript

Feature Flags
Alternatives tracked
16 alternatives
Statsig logo

Statsig

Feature experimentation and analytics platform

Feature Flags
Alternatives tracked
16 alternatives
Tggl logo

Tggl

Feature flag and release management platform for agile teams

Feature Flags
Alternatives tracked
16 alternatives
Most compared product
10+ open-source alternatives

Hypertune offers type-safe feature flags with local evaluation, Git-based version control, A/B testing, and AI optimization. Optimized for TypeScript, React, and Next.js applications.

Leading hosted platforms

Frequently replaced when teams want private deployments and lower TCO.

Explore related categories

Browse neighbouring categories in DevOps & Platform to widen your evaluation.